6.2.3Catalytic liquefaction processes The final category ofdirect liquefactionprocess employs the concept of catalytic liquefaction in which asuitable catalystis used to add hydrogen to the coal. These processes usually require a liquid medium with the catalyst dispersed throughout or may even employ a...
Disclosed is a two-stage process for the production of liquid hydrocarbons from coal. More particularly, disclosed is a two-stage coal liquefaction process wherein subdivided coal is substantially dissolved in a solvent in a first non-catalytic dissolving stage at the temperature in the range 750...
美 英 un.煤液化过程 英汉 un. 1. 煤液化过程 释义: 全部,煤液化过程
COAL LIQUEFACTION PROCESSin a coal liquefaction process with increase of pressure and temperature in the reaction zone.we propose that the reaction product from the reaction zone to a coking zone and to cool the gas and vapour are formed, which are primarily of oil vapor.preferably by heat ...
5.2 The British Coal Liquefaction Process The investigation of coal liquefaction fundamentals outlined in this chapter were carried out with the British Coal Liquefaction Process as background, during a period when a 2.5 ton-per-day pilot plant facility was constructed, commissioned and operated at Po...
A process for liquefying a particulate coal feed to produce useful petroleum-like liquid products which comprises contacting; in a series of two or more coal liquefaction zones, or stages, graded with respect to temperature, an admixture of a polar compound; or compounds, a hydrogen donor solven...
Coal-liquefaction process will make its commercial debut.Reports on the construction of a direct coal-liquefaction plant that will produce syncrude in China by Shenhua Group Corp. under a license agreement with Hydrocarbon Technologies Inc. Capacity of the three reactor trains; Refining of the ...
PURPOSE: To attain in the hydrogenation and liquefaction of coal a high oil yield comparable to that of a conventional process using a ground iron ore catalyst even when the catalyst amount in the liquefaction is smaller than in the conventional process, by using wolframite as a catalyst.收藏...
A process for the liquefaction of coal wherein raw feed coal is dissolved in recycle solvent with a slurry containing recycle coal minerals in the presence of added hydrogen at elevated temperature and pressure. The highest boiling distillable dissolved liquid fraction is obtained from a vacuum dist...
Phenolliquefaction technologyis an important way to achieve conversion utilization of agricultural and forestry wasters. 虽然相关液化工艺和产物结构表征的研究较多,但是工艺研究过分追求低残渣率,对产物的结构表征不够完善,机理探讨不够深入。 4) Coal gasification process ...